CN113607462B - Device and method for preparing variable-inclination-angle transverse anisotropic rock sample - Google Patents

Abstract

The invention relates to a device and a method for preparing a variable-inclination-angle transverse anisotropic rock sample. Wherein, be equipped with box support and support arm on the chassis perpendicularly, the sample case rotates to be connected on box support for hold dress rock sample piece. Sampling device passes through moving mechanism slidable ground and connects on the support arm to be located the top of box, sampling device is suitable for the rotatory rock sample piece that cuts, and moving mechanism work can drive sampling device and slide along the support arm, provides the axial for sampling device's rotary cutting and feeds, and sampling device rotation cutting rock sample piece accomplishes the sample. The invention can realize variable inclination angle sampling by adjusting the angle of the sample box, meets the analysis requirement of a laboratory on the anisotropic mechanical property of the layered rock, and solves the technical problems of difficult inclination angle change, low material utilization rate, low sampling efficiency and the like in the prior art.

Description

Device and method for preparing variable-inclination-angle transverse anisotropic rock sample

Technical Field

The invention relates to a rock sample sampling device for a laboratory, in particular to a device and a method for preparing a transverse anisotropic rock sample with a variable inclination angle.

Background

Under the action of complex ground stress load and a long geological evolution process, the rock mass forms a stratified rock mass structure through the actions of deterioration, deposition and the like. In the underground rock engineering, cracking of surrounding rock structural sheets can occur in the excavation process of the stratified rock mass, a series of typical rock mass disaster problems such as asymmetric weakening large deformation, directional collapse and buckling damage and the like are caused, anisotropic mechanical behavior of the stratified rock mass is researched, self-stability bearing potential of the stratified rock mass is improved, and the method has important scientific significance and engineering value.

In the research process of an indoor laboratory, in order to better describe the mechanical behavior characteristics such as anisotropy of the layered rock, sampling preparation of different inclination angles is carried out on rock materials, and series test analysis is carried out. Particularly, the inclination angle referred to in the invention refers to an angle between a normal direction of a structural plane and a test axial loading direction of a taken rock sample under a single layered rock structure, and the variable inclination angle refers to a controllable angle and can be taken within a certain range.

The current rock sample preparation mode is comparatively single, adopts forms such as metal saw bit or linear cutting to go on more, can not handle layered rock sample more conveniently, and the angle of sampling is difficult to effective control, and preparation efficiency is comparatively low, and sample machining precision is limited, can't satisfy the individualized demand of layered rock sample mechanical properties research.

Disclosure of Invention

Technical problem to be solved

In view of the defects and shortcomings of the prior art, the invention provides a device and a method for preparing a variable-inclination-angle transverse anisotropic rock sample, and solves the problems that rock samples at different angles are difficult to obtain in mechanical analysis in the prior art, and the individual requirements of the anisotropic mechanical property analysis of layered rocks cannot be met.

(II) technical scheme

In order to achieve the aim, the invention provides a device and a method for preparing a transverse anisotropic rock sample with a variable inclination angle, and the specific technical scheme is as follows:

a variable inclination angle transverse anisotropic rock sample preparation device comprises:

the bottom frame is vertically provided with a box body bracket and a supporting arm;

the sample box is rotationally connected with the box body bracket and is used for bearing rock sample blocks;

the sampling device is connected to the supporting arm in a sliding way through the moving mechanism and is positioned above the box body;

sampling device is suitable for the rotary cutting rock sample piece, and moving mechanism work can drive sampling device and slide along the support arm, provides axial feed for sampling device's rotary cutting.

Furthermore, the box body is arranged on the box body bracket through an angle adjusting device, and the angle adjusting device comprises a stepping motor, a driving gear rotating shaft, and a driving gear, a driven gear and a driven gear rotating shaft which are arranged in pairs;

the two driven gears are symmetrically arranged on two sides of the box body in the length direction and are fixedly connected with the box body;

one end of the driven gear rotating shaft is rotatably connected to the box body bracket, and the other end of the driven gear rotating shaft is fixedly connected with the driven gear;

the end part of the driving gear rotating shaft is rotatably connected to the box body bracket, and one end of the driving gear rotating shaft is connected with the stepping motor;

the two driving gears are respectively and fixedly sleeved at the end parts of the rotating shafts of the driving gears and are meshed with the driven gear, and the stepping motor can drive the driven gear meshed with the driving gears to rotate by working, so that the test box is driven to rotate.

Further, the moving mechanism comprises a connecting plate, a screw rod, a nut and a first motor;

the connecting plate can be connected to the supporting arm in a sliding manner, and the sampling device and the nut are respectively arranged at two ends of the connecting plate in the extension direction;

the extending direction of screw rod and support arm is unanimous, and both ends rotationally are connected on the support arm, and wherein one end is connected with first motor, and the periphery of screw rod is located to the nut cover, and first motor work can drive the screw rod rotation, and the nut removes in order to drive the sampling device removal of being connected with the nut along the screw rod.

Furthermore, the supporting arm is provided with a sliding chute which is arranged along the extending direction of the supporting arm;

the connecting plate is provided with a sliding block which is connected in the sliding groove in a sliding way.

Further, the sampling device comprises a second motor and a cutting drill bit;

the second motor is arranged on the connecting plate, and the power output shaft penetrates through the connecting plate to be connected with the cutting drill bit;

the cutting drill bit is of a barrel-shaped structure, a cutter head is arranged at the end part of the cutting drill bit, and the second motor works to drive the cutter head to rotate to cut a rock sample block.

Furthermore, the supporting arm is rotatably connected to the underframe through a slewing device;

the rotating device comprises a rotating disc, a rotating support bearing, a driving gear and a third motor;

a rotary groove is formed in the underframe, and a rotary support bearing is arranged in the rotary groove;

the rotary table is arranged on the rotary support bearing, and the support arm is vertically arranged on the rotary table;

the third motor is arranged on the bottom frame, the power output shaft is connected with the driving gear, the driving gear is meshed with the rotary supporting bearing, and the third motor can drive the rotary supporting bearing meshed with the driving gear to rotate so as to drive the supporting arm arranged on the turntable to rotate.

Furthermore, a limiting device is arranged in the box body and used for limiting the position of the rock sample block;

the limiting device comprises a limiting plate, and two sides of the limiting plate in the extending direction are respectively connected to the inner wall of the box body in a sliding manner;

still be equipped with a plurality of spacer pins on the limiting plate, a plurality of spacer pins are threaded connection respectively on the limiting plate to set up along the extending direction interval of limiting plate, revolve twist the spacer pin and can with rock sample piece crimping.

Further, the device also comprises a controller;

the controller is provided with a plurality of start-stop buttons, the start-stop buttons are correspondingly connected with the sampling device, the moving mechanism, the angle adjusting device and the rotating device respectively, and the start-stop buttons are pressed to control start and stop of corresponding equipment.

A rock sample preparation method adopts the variable inclination angle transverse anisotropic rock sample preparation device, and comprises the following steps:

preparing a rock sample block, and placing the rock sample block in a box body;

controlling the moving mechanism and the sampling device to start, and starting sampling;

controlling the sampling device to stop, controlling the moving mechanism to drive the sampling device to move upwards along the supporting arm, and pulling out the sampling device;

and controlling the moving mechanism to stop, collecting and marking the rock samples obtained by cutting, and finishing sampling.

Further, control moving mechanism and sampling device start, begin the sample, specifically include:

multi-angle sampling: controlling the angle adjusting device to start to drive the sample box to rotate to a set angle, and performing multi-angle sampling;

multi-point sampling: the turning device is controlled to start to drive the sampling device to rotate to a set point position for multi-point sampling.

(III) advantageous effects

The invention provides a device and a method for preparing a transverse anisotropic rock sample with a variable inclination angle, which are applied to the preparation of rock samples in a laboratory. Wherein, the sample box is rotatably arranged on the box body bracket, and the angle can be adjusted at will. The prepared rock sample block is placed in a sample box in advance, and the rock sample block can be a natural rock sample block or an artificial rock sample block. During the sample, the angle of adjustment sample case, control sampling device and moving mechanism start, and moving mechanism drives sampling device along support arm downstream, and sampling device rotary cutting rock sample piece takes a sample. According to the invention, the sample box is rotatably connected to the box body bracket, and the sample box is rotated to different angles for sampling, so that rock samples at different angles are obtained, and the anisotropic mechanical property analysis of the layered rock is conveniently carried out in a laboratory.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application, and in which:

FIG. 1 is a schematic structural diagram of an apparatus and a method for preparing a dip-angle transverse anisotropic rock sample according to an embodiment;

FIG. 2 is a schematic structural view of an angle adjusting apparatus according to an embodiment;

FIG. 3 is a schematic diagram of a moving mechanism and a sampling device according to an embodiment;

FIG. 4 is a schematic view of a cutting tool according to an embodiment;

FIG. 5 is a schematic diagram of a support arm configuration according to an embodiment;

FIG. 6 is a schematic diagram of a test chamber in accordance with an embodiment;

FIG. 7 is a schematic view of a sectional view taken along line A-A of FIG. 6 and a structure of a position-limiting device;

fig. 8 is a schematic structural view of a turning device according to an embodiment.

[ description of reference ]

1. A chassis; 101. a box body bracket; 102. a rotary trough;

2. a support arm; 210. opening the gap; 220. a chute;

3. a moving mechanism;

310. a connecting plate; 311. a slider;

320. a bearing seat; 330. a nut; 340. a screw; 350. a first motor;

4. a sampling device; 410. a second motor;

420. a cutting bit; 421. a barrel-shaped structure; 422. a cutter head;

5. a sample box; 510. a slideway; 520. scale lines;

6. a turning device; 610. a third motor; 620. a rotary drive gear; 630. a turntable;

640. a slewing support bearing; 641. a fixed part; 642. a turning part;

7. an angle adjusting device; 701. a driving gear rotating shaft; 702. a driving gear; 703. a stepping motor; 704. a driven gear shaft; 705. a driven gear;

8. a controller 8;

9. a limiting device; 910. a limiting plate; 920. and a limiting pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present embodiment, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present embodiment.

Referring to fig. 1 to 8, the present embodiment provides a variable inclination angle transverse anisotropic rock sample preparation apparatus, including a base frame 1, a sample box 5 and a sampling device 4. Wherein, be equipped with box support 101 and support arm 2 on the chassis 1 perpendicularly, sample case 5 rotates through angle adjusting device 7 and connects on box support 101 for hold dress rock sample piece, angle adjusting device 7 work can drive the arbitrary angular rotation of sample case 5. In this embodiment, the rock sample block may be a natural layered rock sample block, or may be an artificially fabricated layered solid rock model. Sampling device 4 passes through moving mechanism 3 slidable and connects on support arm 2, and sampling device 4 is located the top of sample case 5, and sampling device 4 is suitable for the rotatory rock sample piece that cuts, and moving mechanism 3 work can drive sampling device 4 along support arm 2's extending direction upper and lower removal. During the specific use, control sampling device 4 and moving mechanism 3 start, and moving mechanism 3 drives 4 downstream of sampling device, for the rotary cutting of sampling device 4 provides circumference and feeds, and sampling device 4 rotary cutting rock sample piece is in order to obtain the rock sample. And after sampling, controlling the sampling device 4 to stop, and driving the sampling device 4 to move upwards by the moving mechanism 3 so as to pull the sampling device 4 out of the rock sample block to obtain a rock sample. Furthermore, the rotation angle of the sample box 5 can be adjusted through the angle adjusting device 7, so that the rock sample blocks in the sample box 5 are inclined to obtain rock samples at different angles, the rock samples are closer to the natural state of the layered rock, the anisotropic mechanical property analysis of the layered rock is conveniently carried out in a laboratory, and the requirement of mechanical property analysis is met.

Specifically, referring to fig. 1 and fig. 2, the angle adjusting device 7 in the present embodiment is a gear transmission system, and includes a stepping motor 703, a driving gear rotating shaft 701, a driven gear rotating shaft 704, a driving gear 702, and a driven gear 705. Specifically, the number of the driven gears 705 and the number of the driven gear rotating shafts 704 are 2, and the 2 driven gears 705 are respectively arranged on two sides of the sample box 5 in the length direction and are fixedly connected with the sample box 5. The driven gear 705 is sleeved on one end of the driven gear rotating shaft 704 through a flat key, and the other end of the driven gear rotating shaft 704 is rotatably connected to the box body support 101 through a bearing. Correspondingly, the number of the driving gears 702 is 2, and the driving gears are respectively sleeved on the end portions of the driving gear rotating shafts 701 through flat keys and are respectively meshed with the driven gears 705. Two ends of the driving gear rotating shaft 701 are rotatably connected to the box body support 101 through bearings, one end of the driving gear rotating shaft is connected with the stepping motor 703, and the stepping motor 703 works to drive the driven gear 705 engaged with the driving gear 702 to rotate so as to drive the sample box 5 fixedly connected with the driven gear 705 to rotate.

The stepping motor 701 is an induction motor, and converts a direct current signal into a pulse current signal supplied in a time-sharing manner by using an electronic circuit, and converts the received pulse current signal into an angular displacement. Specifically, in the present embodiment, the frequency of the pulse current signal is preset according to the requirement of the angular rotation of the sample box 5. When the stepping motor 701 receives a pulse current signal, the pulse current signal can drive the stepping motor 701 to rotate by a set angle according to a set direction, and when the stepping motor 701 rotates to the set angle, the stepping motor 701 stops to drive the sample box 5 to rotate to the set angle, so that the purpose of adjusting the angle of the sample box 5 is achieved. As an example, in the present embodiment, the angle adjustment range of the sample case 5 is 0 ° to 90 °, and the increasing frequency is sequentially increased every 5 °.

Specifically, referring to fig. 2 and 5, the moving mechanism 3 in this embodiment includes a connecting plate 310, a screw 340, a nut 330, and a first motor 350. The connecting plate 310 is provided with a sliding block 311, the support arm 2 is provided with a notch 210, the position of the notch 210 of the support arm 2 is correspondingly provided with a sliding groove 220, the sliding groove 220 is arranged along the extending direction of the support arm 2, and the connecting plate 310 penetrates through the notch 210 and is slidably connected in the sliding groove 220 through the sliding block 311. Further, be provided with 2 bearing frames 320 on the support arm 2, 2 bearing frames 320 set up along the extending direction interval of support arm 2, and screw rod 340 both ends are passed through the bearing and are rotated and connect in bearing frame 320, and one end is connected with first motor 350. The sampling device 4 and the nut 330 are respectively disposed at two ends of the connecting plate 310, the nut 330 is sleeved on the periphery of the screw 340, the first motor 350 is capable of driving the screw 340 to rotate, and the nut 330 slides up and down along the screw 340 to further drive the connecting plate 310 and the sampling device 4 to slide synchronously. In this embodiment, drive sampling device 4 through moving mechanism 3 and move from top to bottom, provide axial feed for sampling device 4's rotary cutting to make 4 depth direction of sampling device cut into the rock sample piece and accomplish the sample, simple structure is convenient for maintain.

Referring to fig. 3 and 4, the sampling device 4 in the present embodiment includes a second motor 410 and a cutting bit 420. The second motor 410 is arranged on the upper portion of the connecting plate 310, a through hole is correspondingly formed in the connecting plate 310, a power output shaft of the second motor 410 penetrates through the through hole to be connected with the cutting bit 420, and the second motor 410 can drive the cutting bit 420 to rotate to sample on a rock sample block. In this embodiment, because the rock test block is the solid, the sample that cuts corresponds to solid sample, need provide a storage space for solid sample during the cutting. Correspondingly, the cutting bit 420 is provided with a barrel 421, the end of the cutting bit is provided with a cutting head 422, the cutting head 422 is used for cutting a rock sample block, and the cut sample is stored in the barrel 421, so that the cutting head 422 can continuously cut in a rotating manner.

Further, referring to fig. 8, the support arm 2 in this embodiment is rotatably connected to the base frame 1 by a swivel mechanism 6. Specifically, the swing device 6 includes a third motor 610, a turntable 630, a swing support bearing 640, and a swing drive gear 620. The chassis 1 is provided with a rotary groove 102, and a rotary support bearing 640 is arranged in the rotary groove 102. The slewing bearing 640 is a large bearing capable of bearing comprehensive loads, can simultaneously bear large axial and radial loads and overturning moments, and is divided into a toothless type, an external tooth type and an internal tooth type. Specifically, in the present embodiment, an inner-tooth-type rotation support bearing 640 is selected, an inner ring of the bearing is a rotation portion 642 provided with a gear, an outer ring is a fixed portion 641, and the rotation portion 642 is rotatable relative to the fixed portion 641. The fixing portion 641 is circumferentially fixed to the rotation groove 102 by bolts, the turntable 630 is fixed to the rotation portion 642 by bolts, and the support arm 2 is vertically provided on the turntable 630. Third motor 610 is fixed in chassis 1 through the motor support on, power output shaft is connected with slewing drive gear 620, slewing drive gear 620 meshes with the gear of the portion 642 of gyration of slewing bearing 640 mutually, third motor 610 work can drive slewing bearing 640 rotatory with slewing drive gear 620 engaged with, and then drive carousel 630, and locate that carousel 630 goes up the support arm 2 rotatory, take a sample to different positions in order to drive sampling device 4 rotation, multi-point position sampling has been realized. However, the rotation driving manner of the supporting arm 2 in the present invention is not limited to the gear driving manner in the present embodiment, and other mechanisms such as chain driving, belt driving, etc. are within the scope of the present invention.

In this embodiment, referring to fig. 6 and 7, the sample box 5 is made of a transparent material with certain rigidity, and is a square or rectangular box structure with an upper end opening, scale marks 520 are arranged on the outer side of the box structure, the scale marks 520 are arranged along the height direction of the sample box 5, and the zero scale line is flush with the inner bottom surface of the box body and used for measuring the height of the rock sample block. Further, still be provided with stop device 9 in the sample case 5, when proof box 5 inclines certain angle, the position of rock sample piece for proof box 5 keeps motionless under stop device 9's effect to guarantee the rock sample who prepares, have a certain fixed angle. Specifically, the limiting device 9 comprises a plurality of limiting plates 910, and the plurality of limiting plates 910 are arranged at intervals along the length direction of the test box 5 and are slidably connected with the inner wall of the box body of the test box 5. The inner front wall and the inner rear wall of the box body are correspondingly provided with slide ways 510, and two ends of the limiting plate 910 are connected in the slide ways 510 in a sliding manner. Each limiting plate 910 is further provided with a plurality of limiting pins 920, and the plurality of limiting pins 920 are respectively in threaded connection with the limiting plates 910 and are uniformly arranged along the extending direction of the limiting plates 910. And the limiting pin 920 is screwed clockwise, the limiting pin 920 extends out in a direction perpendicular to the upper surface of the rock sample block in a rotating manner, and is in pressure joint with the upper surface of the rock sample block to apply vertical force to the rock sample block so as to prevent the position of the rock sample block from moving when the sample box 5 rotates. The number of the stopper plates 910 in this embodiment is preferably 2 to 6, and the number of the stopper pins 920 is preferably 2 to 4. As an example, in the present invention, the number of the stopper plates 910 is 2, and the number of the stopper pins 920 is 3. When the rock sample block positioning device is used specifically, the limiting plates 910 are pushed to two sides manually, and the distance between the two limiting plates 910 is enough for a rock sample block to pass through. And (3) putting the rock sample block into the sample box 5, pushing the limiting plate 910 to the position above the rock sample block, screwing the limiting pin 920 to enable the end part of the limiting pin to be in pressure joint with the surface of the rock sample block so as to limit the position of the rock sample block, and controlling the sampling device 4 and the moving mechanism 3 to start sampling. After sampling, the limiting pin 920 is screwed anticlockwise, so that the end part of the limiting pin is separated from the rock sample block, the limiting plate 910 is pushed to two sides, and the rock sample block is detached. The stop device 9 of this embodiment simple structure, the operation of being convenient for, the applicable location demand in the rock sample piece of different length, the commonality is wide.

Further, the automatic control device further comprises a controller 8, the controller 8 is in communication connection with motors of the sampling device 4, the moving structure 3, the angle adjusting device 7 and the rotating device 6 respectively, a plurality of start-stop buttons are arranged on the controller 8 in a one-to-one correspondence mode, and the start and the close of corresponding equipment are controlled by pressing the start-stop buttons. The controller 8 can be a remote control device on the site of the equipment and can also be a computer provided with control software, the start and stop of the equipment connected with the controller 8 are controlled by one key, the remote operation can be realized, and the harm to the health of an operator due to excessive dust inhalation in the drilling process is avoided.

The concrete structure of the variable inclination angle transverse anisotropic rock sample preparation device is that the moving mechanism 3 is used for providing axial feed for the rotary cutting of the sampling device 4 for sampling. In order to meet the requirement of a laboratory on anisotropic mechanical analysis of layered rocks, the angle of the test box 5 is adjusted through the angle adjusting device 7 so as to perform multi-angle sampling. When a laboratory carries out mechanical analysis on rock samples at the same rotation angle, in order to ensure the accuracy of data, a plurality of groups of samples need to be obtained, the invention drives the supporting arm 2 to rotate through the rotating device 6, so as to drive the sampling device 4 to rotate to different point positions, and carry out multi-point position sampling. The invention obtains rock samples as many as possible by sampling at multiple angles and multiple points, and obtains more accurate mechanical analysis results by summarizing and summarizing multiple groups of rock samples.

Based on the device for preparing the variable-inclination-angle transverse anisotropic rock sample, the invention also provides a rock sample preparation method, which specifically comprises the following steps:

a: preparing a rock sample block in advance, placing the rock sample block in a sample box, and locking the position of the rock sample block through a limiting device;

b: responding to starting instructions of the moving mechanism and the sampling device, controlling the moving mechanism and the sampling device to start, driving the sampling device to move downwards along the supporting arm by the moving mechanism, providing axial feeding for rotary cutting of the sampling device, and starting sampling;

1) and multi-angle sampling:

responding to a starting instruction of the angle adjusting device, controlling the angle adjusting device to start, driving the sample box to rotate to a set angle respectively, and then carrying out multi-angle sampling;

2) multi-point sampling:

responding to a starting instruction of the slewing device, controlling the slewing device to start, and driving the sampling device to rotate to any point position for multi-point sampling;

c: responding to a sampling device stop instruction, controlling the sampling device to stop, controlling a motor of the moving mechanism to rotate reversely, driving the sampling device to move upwards along the supporting arm, and pulling out the sampling device;

d: and responding to a stop command of the moving mechanism, controlling the moving mechanism to stop, manually collecting and marking the rock sample obtained by cutting, and completing sampling.

By the method, an operator controls the start and stop of each device through the controller, so that the multiple rock samples at multiple angles and multiple points can be prepared, automatic sampling is realized, and convenience and rapidness are realized. And respectively labeling the obtained multiple rock samples so as to distinguish different rock samples, and then summarizing the mechanical analysis results of the rock samples according to the labels to obtain more accurate mechanical analysis results so as to facilitate the subsequent analysis and application of the anisotropic mechanical properties of the layered rock.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention.

Claims (8)

1. A device for preparing a transverse anisotropic rock sample with a variable inclination angle is characterized by comprising:

the device comprises a base frame (1), wherein a box body support (101) and a support arm (2) are vertically arranged on the base frame (1);

the supporting arm (2) is rotatably connected to the underframe (1) through a rotating device (6);

the sample box (5) is rotationally connected with the box body bracket (101) and is used for bearing rock sample blocks;

the sampling device (4) is connected to the supporting arm (2) in a sliding way through a moving mechanism (3) and is positioned above the sample box (5);

the sampling device (4) is suitable for rotationally cutting the rock sample block, and the moving mechanism (3) can drive the sampling device (4) to slide along the supporting arm (2) in a working mode and provide axial feeding for the rotational cutting of the sampling device (4);

the box body is arranged on the box body bracket (101) through an angle adjusting device (7);

the angle adjusting device (7) comprises a stepping motor (703), a driving gear rotating shaft (701), and a driving gear (702), a driven gear (705) and a driven gear rotating shaft (704) which are arranged in pairs;

the two driven gears (705) are symmetrically arranged on two sides of the length direction of the sample box (5) and are fixedly connected with the sample box (5);

one end of the driven gear rotating shaft (704) is rotatably connected to the box body bracket (101), and the other end of the driven gear rotating shaft is fixedly connected with the driven gear (705);

two ends of the driving gear rotating shaft (701) are rotatably connected to the box body bracket (101), and one end of the driving gear rotating shaft is connected with the stepping motor (703);

two driving gear (702) are fixed the cover respectively and are located the tip of driving gear pivot (701), with driven gear (705) mesh mutually, step motor (703) work can drive with driving gear (702) mesh mutually driven gear (705) are rotatory, and then drive sample case (5) are rotatory.

2. The variable inclination angle transverse anisotropic rock sample preparation apparatus according to claim 1, wherein the moving mechanism (3) comprises a connection plate (310), a screw (340), a nut (330) and a first motor (350);

the connecting plate (310) is connected to the supporting arm (2) in a sliding manner, and the sampling device (4) and the nut (330) are respectively arranged at two ends of the connecting plate (310) in the extending direction;

screw rod (340) with the extending direction of support arm (2) is unanimous, both ends rotationally connect in on support arm (2), wherein one end with first motor (350) are connected, nut (330) cover is located the periphery of screw rod (340), first motor (350) work can drive screw rod (340) are rotatory, nut (330) are followed screw rod (340) remove in order to drive with sampling device (4) that nut (330) are connected move.

3. The apparatus for preparing the anisotropic rock sample with the variable inclination angle and the transverse direction according to claim 2, wherein the supporting arm (2) is provided with a sliding groove (220), and the sliding groove (220) is arranged along the extending direction of the supporting arm (2);

the connecting plate (310) is provided with a sliding block (311), and the sliding block (311) is connected in the sliding groove (220) in a sliding mode.

4. The variable inclination angle transverse anisotropic rock sample preparation device according to claim 2, characterized in that the sampling device (4) comprises a second motor (410) and a cutting bit (420);

the second motor (410) is arranged on the connecting plate (310), and a power output shaft penetrates through the connecting plate (310) to be connected with the cutting drill bit (420);

cutting bit (420) is tubbiness structure (421), and the tip is provided with tool bit (422), second motor (410) work can drive tool bit (422) rotary cutting rock appearance piece.

5. The variable inclination angle transverse anisotropic rock sample preparation device according to claim 1, characterized in that the slewing device (6) comprises a turntable (630), a slewing support bearing (640), a slewing drive gear (620) and a third motor (610);

a rotary groove (102) is formed in the underframe (1), and the rotary support bearing (640) is arranged in the rotary groove (102);

the turntable (630) is arranged on the rotary support bearing (640), and the support arm (2) is vertically arranged on the turntable (630);

third motor (610) is located on chassis (1), power output shaft with slewing drive gear (620) are connected, slewing drive gear (620) with slewing bearing (640) mesh mutually, third motor (610) work can drive with slewing drive gear (620) meshing slewing bearing (640) rotate, and then the drive is located on carousel (630) support arm (2) are rotatory.

6. The device for preparing the transverse anisotropic rock sample with the variable inclination angle according to claim 1, wherein a limiting device (9) is further arranged in the box body and used for limiting the position of the rock sample block;

the limiting device (9) comprises a limiting plate (910), and two sides of the extending direction of the limiting plate (910) are respectively connected to the inner wall of the sample box (5) in a sliding manner;

still be equipped with a plurality of spacer pins (920) on limiting plate (910), it is a plurality of spacer pin (920) threaded connection respectively is in on limiting plate (910), and follow the extending direction interval of limiting plate (910) sets up, twists soon spacer pin (920) can with rock appearance piece crimping.

7. The variable inclination angle transverse anisotropic rock sample preparation apparatus according to any one of claims 1 to 6, further comprising a controller (8);

the controller (8) is provided with a plurality of start-stop buttons, the start-stop buttons are correspondingly connected with the sampling device (4), the moving mechanism (3), the angle adjusting device (7) and the rotating device (6), and the start-stop buttons are pressed to control the start and stop of corresponding equipment.

8. A rock sample preparation method using the variable inclination angle transverse anisotropic rock sample preparation apparatus according to claim 7, comprising the steps of:

preparing a rock sample block, and placing the rock sample block in a sample box;

controlling the moving mechanism and the sampling device to start, and starting sampling;

controlling the sampling device to stop, controlling the moving mechanism to drive the sampling device to move upwards along the supporting arm, and pulling out the sampling device;

controlling the moving mechanism to stop, collecting and marking the cut rock samples, and finishing sampling;

wherein, control moving mechanism and sampling device start, begin the sample, specifically include:

multi-angle sampling: controlling the angle adjusting device to start to drive the sample box to rotate to a set angle, and performing multi-angle sampling;

multi-point sampling: and controlling the turning device to start to drive the sampling device to rotate to a set point position for multi-point sampling.

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